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Cronograph numbers for "2277 valved" DAQ .25

June 26 2012 at 6:09 PM
zach allen  (Login sonargodz)
YF12

I recently put my 1377 stemmed "2277 valve"{ in my DAQ .25 caliber pistol breeched 2250 with a Powermax Hipac. The new valve body uses a 1377 stem and the main port has been modified. The springs for the test are all stock weight, and actually for the first set of tests, I had a worn out hammer spring and didn't know it until I recieved my new parts from Crosman.

[linked image]
These breeches are hard to find, so if you got one for sale, let me know.

[linked image]
1377 stem compared to the stock 2240 stem. The poppet and stem are both smaller in diameter and the 1377 stem is much lighter. You can still use a 2240 valve stem as long as you don't reduce the diameter any further.


Here is the stock valve on high pressure air before the installation on 800 psi using 31.1 grain Kodiaks.

278
269
263
254
243

After Installation:

398
384
377
360
344

Before the installation on 1000 psi using 31.1 grain Kodiaks.

299
296
297
292
291

After Installation:

382
398
389
382
383

Before the installation on 1200 psi using 31.1 grain Kodiaks.

308
307
310
302
309

After Installation (a little slow due to weak hammer spring):

324
338
342
345
373

I then installed a brand new hammer spring from Crosman after recieving a box of parts. I didn't have many pellets left, so I could only take one test shot for each pressure:

800psi no test
900psi 411fps
1000psi 428fps
1200psi 457fps
1300psi 463fps 14.8ft/lbs

This is a stock length modified front valve body and new 1377 stem. $33.00 shipped to your door. The shipping has been upgraded to a Priority Mail Flat Rate box, hence part of the price increase. Email me at sonargodz @ hotmail.com.


    
This message has been edited by sonargodz on Jun 26, 2012 6:11 PM


 
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